It would be nice to have a tablet and make it Home Assistant only. I manage to accomplish this but only with 3rd party’s app. Basically kiosk mode is a home launcher and it makes it impossible to leave the app. The home, back and recent button’s won’t work when im kiosk mode leaving the tablet exclusively to use with Home Assistant App.
There was some discussion on this topic, basically best to stick to third party apps as this is not the focus of the app. Make sure to check the comments here.